Innate Pharma

Declaration of Voting Results & Voting Rights Announcements • Dec 9, 2015

NUMBER OF SHARES AND VOTING RIGHTS OF INNATE PHARMA AS AT DECEMBER 7, 2015

Marseille, December 9, 2015

Pursuant to the article L. 233-8 II of the French « Code de Commerce » and the article 223-16 of the French stock-market authorities (Autorité des Marchés Financiers, or "AMF") charter, Innate Pharma SA (the "Company" - Euronext Paris: FR0010331421 – IPH) releases its total number of shares outstanding as well as its voting rights as at December 7, 2015:

Total number of shares outstanding:	53,834,014
Total number of theoretical voting rights (1):	53,834,014
Total number of exercisable voting rights (2):	53,809,237

(1) The total number of theoretical voting rights (or "gross" voting rights) is used as the basis for calculating the crossing of shareholding thresholds. In accordance with Article 223-11 of the AMF General Regulation, this number is calculated on the basis of all shares to which voting rights are attached, including shares whose voting rights have been suspended.

(2) The total number of exercisable voting rights (or "net" voting rights) is calculated without taking into account the shares with suspended voting rights, in this case, shares held by the Company in the context of a liquidity agreement. It is released so as to ensure that the market is adequately informed, in accordance with the recommendation made by the AMF on July 17, 2007.

About Innate Pharma:

Innate Pharma S.A. is a biopharmaceutical company discovering and developing first-in-class therapeutic antibodies for the treatment of cancer and inflammatory diseases.

Its innovative approach has translated into major alliances with leaders in the biopharmaceutical industry such as Bristol-Myers Squibb, AstraZeneca and Novo Nordisk A/S.

The Company has three clinical-stage programs in immuno-oncology, a new therapeutic field that is changing cancer treatment by enhancing the capability of the body's own immune cells to recognize and kill cancer cells. Innate Pharma's science also has potential in chronic inflammatory diseases.

Listed on Euronext-Paris, Innate Pharma is based in Marseille, France, and had 112 employees as at September 30, 2015.

Learn more about Innate Pharma at www.innate-pharma.com.

Practical Information about Innate Pharma shares:

ISIN code	FR0010331421
Ticker code	IPH

Disclaimer:

This press release contains certain forward-looking statements. Although the company believes its expectations are based on reasonable assumptions, these forward-looking statements are subject to numerous risks and uncertainties, which could cause actual results to differ materially from those anticipated. For a discussion of risks and uncertainties which could cause the company's actual results, financial condition, performance or achievements to differ from those contained in the forward-looking statements, please refer to the Risk Factors ("Facteurs de Risque") section of the Document de Reference prospectus filed with the AMF, which is available on the AMF website or on Innate Pharma's website.

This press release and the information contained herein do not constitute an offer to sell or a solicitation of an offer to buy or subscribe to shares in Innate Pharma in any country.

For additional information, please contact:

Innate Pharma ATCG Press

Laure-Hélène Mercier Director, Investor Relations Tel.: +33 (0)4 30 30 30 87 investors@innate-pharma.com presse@atcg-partners.com

Marie Puvieux, Mob.: +33 (0)6 10 54 36 72